package day03;

public class IfElseDemo {
    public static void main(String[] args) {
        double price = 800;
        if(price >=500){
            price*=0.8;
        }else {
            price*=0.9;
        }
        System.out.println("价格为："+price);

        int score = 99;
        if(score>=0 && score<=100){
            System.out.println(score+"是合法成绩");
        }else {
            System.out.println(score+"不是合法成绩");
        }

    }
}
